Alqueva Paradise and the Winter Sky

This paradise night scene of the winter sky above the lake of Campinho village, Alqueva Dark Sky® Reserve, shows, above, star clusters and diffuse red/violet colors shinning from deep space objects like Orion and other emission nebulae spread in the celestial sphere. In the center left of the image, we can see a rare and faint white light known as Gegenschein, a faint brightening of the night sky in the region of the antisolar point. like the zodiacal light, the gegenschein is sunlight scattered by interplanetary dust. Most of this dust is orbiting the Sun in about the ecliptic plane. It is distinguished from zodiacal light by its high angle of reflection of the incident sunlight on the dust particles.